Rolling colter



J. H.- DOFHNG.

ROLLING COLTER.

' APPLICATION HLED MAR. 25. I920.

1,413,709. Patented Apr. 25, 1922.

To all whom it may concern: Be it known that I, J HN H. Dorrmo, a

ot-rs s JOHN'H. norrm'o, or new mama, rvrrnnnsom.

nonmuedd-mnn. v

Specification of Letters Patent; .Pfintented; Aprr Application filed March25, 1920.v Seria1,1\T0. 368,807.-

citizen of the United Stat'es, residing at New Trier, in the county of Dakota and State of Minnesota, have, invented certain new and useful Improvements in Rolling Colters; and I do hereby declare the following to, be a full, clear, and exact description: of'the invention, such as willenable others skilled in the art to. which it appertains to make and use the same.

This invention relates to new and useful improvements in rolling colters, and has for its primary object the provision of a mounting for the colter which normally urges the colter into or in the direction of the ground,

but will permit the colter to swing upwardly s when engaging an obstruction thereby permitting the plow to remain in the ground and not cause it to move outwardly therefrom which allows better and even plowing and also reduces to a great extent the dulland having to raise the weight of the plow thereover.

Another object of this invention is the provision'of means which permits the colter to oscillate about a vertical axisso that said colter may more readily follow the path of travel and keep in front of the plow point.

A further object of this invention is the provision of a rolling colter of the above stated character, which shall be simple, durable and efiicient, and whichmay be manufactured and sold at a comparatively low cost.

With these and other objects in view as will become more apparent as the description proceeds, the invention consists in oer-i Figure 1 is a side elevation illustrating a rolling colter attached to a plow and con structed in accordance "with my invention and also illustrating the colter in dotted lines occupying a position caused by e gaging an obstructi i mg of the colter caused by striking rocks Figure 2 is a perspective view illustrating a clamp to be secured to the plow beam,

Figure 3 isasimilar" View illustrating a journal forthe colter standard, L fFigure't is a similar view illustrating the colter hanger,

Figured; is a plan of the supporting shaft or standard.

Referring in detail to, drawing,

numeral '1' indicatesas an entirety a plow" 9 including aplow beam 2 having the usual plow share 3at one end and the plow handles 4. The foregoing description relates to a well known construction of plow to which myinvention isapplicable.

A hanger" 50011818118 of a tubular portion 6 on which is formed relative spaced arms 7.

The arms 7 have journaledtherebetween the r colter or disk 8. A standard-or supporting shait't'9 has one enddisposed in the tubular j portion 6 and 'isvsecured therein by a set screw 10 which is carriedby said standard and extends through a slot 11in said tubular about a vertical axis.

A plate 12 is secured to: the plow beam adjacent its forward end by means of a sub-- stantially U-shaped clamp 13 and said plate portion to permit the hanger 5 to swing has formed thereon a, right angle extending bolt 14. A sleeve 15 is rotatably secured;

on the bolt l iby means of a nut/16 and has formed vintegrally f therewith a collar 17 which receives the upper portion of the standard or supporting rod 9. The collar is secured to the standard orsupporting'rod 9 by a set screw 18 providing a construction wherein the standard or supportingrodccan standa-rdfor supporting rod by means of a set screw and has one end of a coil spring 21 secured thereto, while the other end of the coil spring has attached thereto an eye bolt.

22 which is adjustably secured to the rear portion of the plow beam 2.

9 0 be adjusted in relation to the clamp. 1 collar 20 is secured to the upper end of the The" standard or. supportingrod 9 is offset I d as illustrated at 23 so asto position the disk or colter 8 in front and in, alinement' with the plow point of the plow share so that said colter will sever or out roots, vines and other r fragile objects that may be on the ground or partially imbedded in the ground. The disk or colter 8 is normally urged the dime,-

tion and in engagement with the ground by the spring 21 and when said colter engages an obstruction such as a stone or log resting on the surface of the" ground or partially embedded in the ground, said colter. swings upwardly against the tension of the spring I permitting the plow to remain in the ground can swing about a vertical axis so that the colter or disk 8 willmorei readily follow the line of travel. c y

'While I have shown and described the preferred embodiment of my invention, it wlll be understood'that minor changes 1n construction, combination, and arrangement '7 Witnesses of parts may be made without departing from the spirit and scope of the invention as claimed.

Having thus described my invention, what I claim is: p

In a colter, a substantially horizontal spindle, a sleeve journaled on the spindle, a substantially vertical sleeve integral with said first sleeve, a standard adjnstably secured in said second sleeve for axial and longitudinal movement having an offset end, a colter, a colter hanger extending from said end, and a spring associated with the stand-v ard to urge the colter into contact with the ground.

In testimony whereof I afiixi my signature in presence of two witnesses.

JOHN H.,DOFFING.

A. lVIUnnLERLEILE, ARTHUR HOFFMAN. 

